Add tests for player actions

game/plugin/entity/player-action/src/PlayerAction.kt

@@ -0,0 +1,31 @@
+package org.apollo.game.plugin.entity.player_action
+
+import org.apollo.game.message.impl.SetPlayerActionMessage
+import org.apollo.game.model.entity.Player
+import org.apollo.game.model.event.PlayerEvent
+import java.util.*
+
+class PlayerActionEvent(player: Player, val target: Player, val action: PlayerActionType) : PlayerEvent(player)
+
+fun Player.enableAction(action: PlayerActionType) {
+    send(SetPlayerActionMessage(action.displayName, action.slot, action.primary))
+    actions += action
+}
+
+fun Player.disableAction(action: PlayerActionType) {
+    send(SetPlayerActionMessage("null", action.slot, action.primary))
+    actions -= action
+}
+
+fun Player.actionEnabled(action: PlayerActionType): Boolean {
+    return action in actions
+}
+
+fun Player.actionAt(slot: Int): PlayerActionType? {
+    return actions.find { it.slot == slot }
+}
+
+private val playerActionsMap = mutableMapOf<Player, EnumSet<PlayerActionType>>()
+
+private val Player.actions: EnumSet<PlayerActionType>
+    get() = playerActionsMap.computeIfAbsent(this) { EnumSet.noneOf(PlayerActionType::class.java) }